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    Formation and geminate quenching of singlet oxygen in purple bacterial reaction center by Arellano, Juan B., Yousef, Yaser A., Melo, Thor Bernt, Mohamad, Samsun Baharin, Cogdell, Richard J., Naqvi, K. Razi

    Published 2007
    “…The time constants s1 and s2 (72 ± 5 ls and 12 ± 1 ls, respectively) as well as the factor a2 are insensitive to the oxygen content, and quenching of P� is manifested only through a threefold reduction in the magnitude of a1; these data imply the absence of dynamic quenching and heterogeneity of the RC. …”
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